ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,663, issued on June 23, was assigned to DB HITEK Co. LTD. (Seoul, South Korea).
"Pillar structure and super junction semiconductor device including the same" was invented by Yong Sin Han (Jeonju-si, South Korea) and Myeong Bum Pyun (Namdong-gu, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pillar structure includes an epitaxial layer of a first conductivity type including an active region and a peripheral region surrounding the active region and a plurality of pillars of a second conductivity type, the pillars extending in a vertical direction within the epitaxial layer, being spaced apart from each other in a horizontal direction, re...